Examples with RelationshipGroupStore org.neo4j.kernel.impl.store.RelationshipGroupStore used on opensource projects

Example 11 with RelationshipGroupStore

use of org.neo4j.kernel.impl.store.RelationshipGroupStore in project neo4j by neo4j.

the class TransactionRecordStateTest method shouldDeleteEmptyGroupsWhenDeletingNodeAndLastRelationship.

@Test
void shouldDeleteEmptyGroupsWhenDeletingNodeAndLastRelationship() throws Exception {
    // given
    // node --> group A (empty) --> group B (not empty) --> group C (empty)
    // |
    // v
    // relationship
    neoStores = createStores();
    NodeStore nodeStore = neoStores.getNodeStore();
    RelationshipGroupStore groupStore = neoStores.getRelationshipGroupStore();
    RelationshipStore relationshipStore = neoStores.getRelationshipStore();
    long nodeId = nodeStore.nextId(NULL);
    long relationshipId = relationshipStore.nextId(NULL);
    long groupA = groupStore.nextId(NULL);
    long groupB = groupStore.nextId(NULL);
    long groupC = groupStore.nextId(NULL);
    groupStore.updateRecord(new RelationshipGroupRecord(groupA).initialize(true, 0, NULL_REFERENCE.longValue(), NULL_REFERENCE.longValue(), NULL_REFERENCE.longValue(), nodeId, groupB), NULL);
    groupStore.updateRecord(new RelationshipGroupRecord(groupB).initialize(true, 1, NULL_REFERENCE.longValue(), NULL_REFERENCE.longValue(), relationshipId, nodeId, groupC), NULL);
    groupStore.updateRecord(new RelationshipGroupRecord(groupC).initialize(true, 2, NULL_REFERENCE.longValue(), NULL_REFERENCE.longValue(), NULL_REFERENCE.longValue(), nodeId, NULL_REFERENCE.longValue()), NULL);
    relationshipStore.updateRecord(new RelationshipRecord(relationshipId).initialize(true, NO_NEXT_PROPERTY.longValue(), nodeId, nodeId, 1, 1, NULL_REFERENCE.longValue(), 1, NULL_REFERENCE.longValue(), true, true), NULL);
    nodeStore.updateRecord(new NodeRecord(nodeId).initialize(true, NO_NEXT_PROPERTY.longValue(), true, groupA, Record.NO_LABELS_FIELD.longValue()), NULL);
    // when
    TransactionRecordState state = newTransactionRecordState();
    state.relModify(singleDelete(relationship(relationshipId, 1, nodeId, nodeId)));
    state.nodeDelete(nodeId);
    apply(state);
    // then
    assertThat(nodeStore.isInUse(nodeId, NULL)).isFalse();
    assertThat(groupStore.isInUse(groupA, NULL)).isFalse();
    assertThat(groupStore.isInUse(groupB, NULL)).isFalse();
    assertThat(groupStore.isInUse(groupC, NULL)).isFalse();
    assertThat(relationshipStore.isInUse(relationshipId, NULL)).isFalse();
}